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ISO/TS 24064

RichMedia annotations conforming to the ISO 10303-242 (STEP AP 242) specification

This document specifies how to extend the ISO 32000-2 specification by adding the ISO 10303-242 (STEP AP 242) format as a valid format for 3D assets contained in a RichMedia annotation. It is intended for:

  • developers of software that creates PDF files (PDF writers);
  • software that reads existing PDF files and usually interprets their contents for display (PDF readers);
  • software that reads and displays PDF content and interacts with the computer users to possibly modify and save the PDF file (PDF processors);
  • PDF products that read and/or write PDF files for a variety of other purposes (PDF processors).
  • Note PDF writers and PDF readers are more specialised classifications of PDF processors.

This document does not specify the following:

  • specific processes for converting paper or electronic documents to the PDF file format;
  • specific technical design, user interface implementation, or operational details of rendering;
  • specific physical methods of storing these documents such as media and storage conditions;
  • methods for validating the conformance of PDF files or PDF processors;
  • required computer hardware and/or operating system.

The registered IANA Media types for STEP are model/step, model/step+xml, model/step+zip, and model/step-xml+zip.


Technical questions about ISO/TS 24064 are most effectively addressed in the PDF Association’s official pdf-issues GitHub repo.


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PDF 2.0 icon
Community: 3D PDF TWG, RichMedia TWG

ISO Group Responsible: ISO TC171 SC2 WG7

ISO Status: status of all PDF-related ISO work

ISO’s page for this standard

3D PDF Extensions to PDF 2.0

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